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An algorithm on adaptive visual features extraction for three dimension micro narrow weld seam is proposed. And the reliable extraction of the seam is realized. Then a morphological profile recognition method and fast straight line fitting method are proposed to robustly extract the skeleton of structured light stripe. Furthermore, the orthogonal characteristics of the weld features and the structure...
In this paper a visual servo control system is designed to realize the accurate tracking of the narrow butt seam of the thin plate. An effective “and” operation and statics method is proposed to reduce the image noises caused by various disturbances in the welding process. And the ROI of the image is determined to improve the efficiency of the image processing. The feature line of the thinned seam...
The laser weld is becoming more and more popular in the steel industrial production. However, the varying illumination, reflection and splatter lead to the irregular seam shape, which deteriorates the seam quality. In order to evaluate the seam shape and its quality, a 3D reconstruction method about micro and thin laser seam is proposed. The line structured light stripe is projected on the laser seam...
A trajectory tracking control scheme of a Macro-Micro welding robot based on the vision navigation is proposed. The robot system is composed of macro manipulator and micro manipulator attached to the tip of the macro part. Based on the visual sense, the robot is capable of effectively realizing the teaching mode and real-time tracking mode simultaneously, which is quite advantage to achieve better...
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